This type is provided to ease the specification of table or procedure access parameters and provide consistent specification throughout the document. This type is provided to ease the specification of table or procedure access parameters and provide consistent specification throughout the document. This type is provided to ease the specification of table or procedure access parameters and provide consistent specification throughout the document. History and event codes Decade contains tables associated with end device configuration, identification, procedures and responses, and information required for data manipulation due to hardware configurations. This table contains general end device configuration information. It also establishes the total set of tables, procedures, and the selection of special types used in the end device. If a default set is used, it is indicated by this table. Variable to define order of multibyte numeric data transfer. Data type used for Dates & Time. Variable to designate method of passing the table data after GEN_CONFIG_TBL (Table 00) has been interrogated. Note: All data access methods support complete table access. Indicates the format of the identifier fields. Indicates the format of signed integer types. Indicates the type of non-integer value used throughout the tables where specified as NI_FMAT1. Indicates the type of non-integer value throughout the tables where shown as NI_FMAT2. End device manufacturer identification. Refer to Annex A, ID Codes For Meter Equipment Manufacturers for list of manufacturer identifiers. Entry used to select the nameplate record structure to be used in DEVICE_NAMEPLATE_TBL (Table 02). Indicates which, if any, default sets are used. See Annex C, DEFAULT SETS FOR DECADE TABLES, for the default set definitions. Manufacturer defined maximum length for argument parameters passed to procedures in PROC_INITIATE_TBL (Table 07). Manufacturer defined maximum length representing length returned by procedures in PROC_RESPONSE_TBL (Table 08). Unsigned binary number designating the version of the particular industry set of standard tables. Unsigned binary number that designates a minor change to a version of this standard. Within a given version of this standard, all revisions with a lower revision number shall be backward compatible. If this is not true then a new version number shall be required. Octets required to represent the set of standard tables used in GEN_CONFIG_TBL.STD_TBLS_USED (Table 00). This is a mechanism to allow the table identifier set to expand in size from simple devices to complex devices. Octets required to represent the set of manufacturer tables used in GEN_CONFIG_TBL.MFG_TBLS_USED (Table 00). This is a mechanism to allow the table identifier set to expand in size from simple devices to complex devices. Octets required to represent the set of standard procedures used in GEN_CONFIG_TBL.STD_PROC_USED (Table 00). This is a mechanism to allow the standard defined procedure identifier set to expand in size. Octets required to represent the set of manufacturer procedures used in GEN_CONFIG_TBL.MFG_PROC_USED (Table 00). This is a mechanism to allow the manufacturer defined procedure identifier set to expand in size. The number of octets allocated for indicating manufacturer specific status flags. Number of pending status sets in PENDING_STATUS_TBL (Table 04). This set variable indicates which of the Standard Tables are implemented by the device. Tables are represented by bits 0 through (8*DIM_STD_TBLS_USED-1), with a 1 representing a TRUE or implemented condition and a 0 representing a FALSE or not implemented condition. This set variable indicates which of the Manufacturer Tables are implemented by the device. Tables are represented by bits 0 through (8*DIM_MFG_TBLS_USED-1), with a 1 representing a TRUE or implemented condition and a 0 representing a FALSE or not implemented condition. This set variable indicates which of the Standard Procedures are implemented by the device. Procedures are represented by bits 0 through (8*DIM_STD_PROC_USED-1), with a 1 representing a TRUE or implemented condition and a 0 representing a FALSE or not implemented condition. This set variable indicates which of the Manufacturer's Procedures are implemented by the device. Procedures are represented by bits 0 through (8*DIM_MFG_PROC_USED-1), with a 1 representing a TRUE or implemented condition and a 0 representing a FALSE or not implemented condition. This set variable indicates which of the standard tables are capable of being rewritten. Tables are represented by bits 0 through (8*DIM_STD_TBLS_USED-1), with a 1 representing a writeable table and a zero representing a table that cannot be written. This set variable indicates which of the standard tables are capable of being rewritten. Tables are represented by bits 0 through (8*DIM_MFG_TBLS_USED-1), with a 1 representing a writeable table and a zero representing a table that cannot be written. This table is a general manufacturer identification data table for Water, Gas, and Electric Utility end devices. The values of the data items shall be set up by the manufacturer and left unchanged since they are determined by the functionality of the device. Name of manufacturer. Refer to Annex A, ID Codes For Meter Equipment Manufacturers, ID definitions. Model identifier of the end device left justified. For example 'ENG M3 '. Manufacturer's hardware version number. Implies functional changes. Manufacturer's hardware revision number. Implies product corrections or improvements. Recommended use of '0' to designate prototyping device. Manufacturer's firmware version number. Changes in value imply functional differences. Manufacturer's firmware revision number. Changes in value imply product corrections or improvements. Recommend use of '0' to designate preproduction or prototyping software. Manufacturer's serial number for the end device. 16 BCD digits OR CHARs. This table is the nameplate data table. This table contains a record structure for each type of end device (e.g. water, gas, electric). The structure to be used is specified in GEN_CONFIG_TBL.NAMEPLATE_TYPE (Table 00). This table presently has nameplate structures defined for an electric meter, a gas meter and a water meter. This nameplate definition is generally associated with Water Utility end devices. The values of the data items shall be set up by the manufacturer and left unchanged since they are determined by the functionality of the device. Code representing water end device type. Code representing type of fluid measured by water end device. Code representing water end device drive. Code representing end device pipe size. Code representing gas end device type. Unsigned binary number identifying the primary mechanical design principle of the device depending upon value of G_ED_TYPE. End device maximum design pressure. Unit of measure of G_MAX_PRESS. End device maximum design flow rate. Unit of measure of G_MAX_FLOW. Code representing gas meter gear drive size. Code representing gas meter pipe size. Code representing the gas meter temperature compensation type. Code representing the gas meter pressure compensation type. This nameplate definition is generally associated with Gas Utility end devices. The values of the data items shall be set up by the manufacturer and left unchanged since they are determined by the functionality of the device. Power frequency rating code. Number of commodity measuring elements per measuring input to the end device. Indicates the type of meter base. Reserved for future ANSI solid state meter standard accuracy class definitions. Contains binary codes describing meter RMS voltages. Meter element voltage code. External supply voltage code. End device class or IEC max amp rating. The RMS amperage test amps (TA) specified by the manufacturer for the main test and/or adjustment of the meter. This nameplate definition is generally associated with Electric Utility end devices. The values of the data items shall be set up by the manufacturer and left unchanged since they are determined by the functionality of the device. Watthours per revolution. (May be represented as Unithours per equivalent revolution). The commodity amount selected for the test pulse output. Divisor by which to scale input values. For example if input consists of pulses, an INPUT_SCALAR value of 2 would cause the pulse stream to be divided by 2. Form number per ANSI C12.10. Characters. This is full device nameplate data structure configured as a case statement for selection of water, gas or electric end devices. The selection variable is GEN_CONFIG_TBL.NAMEPLATE_TYPE (Table 00). This table provides the current operating mode and status of various conditions in the end device. It allows for both standard and manufacturer specific status definitions. Standard status code bit field 2 is a place holder for future expansion. Set containing the manufacturer specific status flags. This table is established to provide an indication of the tables present in the end device with a pending status. Information contained within this table includes table number, manufacturer or standard table indicator, conditions (events) upon which activation of a pending table is to occur, self-read or demand reset upon activation indicators and several additional status variables. Selectors indicating action to be performed upon activation of selected table. Variable that specifies the condition upon which the pending table shall be made active. The trigger condition is stored in the EVENT_STORAGE variable. Status bits indicating various conditions associated with a pending table. Variable for storage of the trigger condition that causes a pending table to become active. For an EVENT_CODE of 0 this variable contains the year, month, day, hour, and minute in the format indicated. For an EVENT_CODE of 1 this variable contains the weeks, days, hours, minutes and seconds in the format indicated. For an EVENT_CODE of 2 this variable contains in the first four characters the ASCII manufacturer code per ANNEX A of this document. The final character is an event number as defined by the manufacturer. Variable containing the table number, the standard or manufacturer flag and the pending flag. The pending flag indicates that the associated table has not been activated. This set variable indicates which of the standard tables are capable of being written with a pending status. This set variable indicates which of the manufacturer tables are capable of being written with a pending status. Date and time of the last pending table activated. Number of activation events in the PENDING_STATUS_TBL structure that have yet to be activated. List of pending tables and associated activation triggers. This table provides the unique identifier for the device as specified by the user. Array of 20 characters or 20 BCD digits used to uniquely identify the device. This table is for utility use in providing additional end device identifying or tracking information. Up to 20 Characters. All printable characters are valid. Utility division number. Up to 16 Characters. All printable characters are valid. 20 Characters or BCD digits. ID number attached to the service point. End device logical electrical address for mapping and study purposes. This is used by the utility as information only. The ID attached to the hardware. 20 Characters or BCD digits. Utility specified serial number. Up to 20 Characters or BCD digits. Up to 20 Characters or BCD digits. All printable characters are valid if characters. Generalized mapping coordinate x. Generalized mapping coordinate y. Generalized mapping coordinate z. Identification of the billing tariff. Name of manufacturer, in ASCII, that provided configuration/programming software. Refer to Annex A, Codes for Meter Equipment Manufacturers, for list of manufacturer identifiers. Configuration/programming software version number, unsigned binary number. Changes in value imply functional differences. Configuration/programming software revision number, unsigned binary number. Changes in value imply product corrections or improvements. Recommend use of '0' to designate preproduction or prototyping software. Name of manufacturer, in ASCII, that provided configuration/programming software. Refer to Annex A, Codes for Meter Equipment Manufacturers, for list of manufacturer identifiers. Configuration/programming software version number. Changes in value imply functional differences Configuration/programming software revision number, unsigned binary number. Changes in value imply product corrections or improvements. Recommend use of '0' to designate preproduction or prototyping software. Name of the last programmer or programming device. Thirty characters, free form. All printable characters are allowed. This could be used to contain approval #, verification #, bar code, etc. This table allows for the execution of commands using the table structure. To execute a command a procedure identifier (PROC), a sequence number (SEQ_NBR), and an optional parameter list (PARM) are written into this table. The response to the command is placed in PROC_RESPONSE_TBL (Table 08) and is available to be read. As a minimum response, all commands produce an echo of the procedure identifier (PROC), an echo of the sequence number (SEQ_NBR), and a result code. Procedure number to be executed. Describes how the response to the procedure is handled. Bit field indicating procedure number to be executed and whether the procedure is a standard defined procedure or a manufacturer defined procedure. It also describes the response method. The sequence number is supplied by initiator of the procedure. It shall be returned with procedure response in PROC_RESPONSE_TBL (Table 08) as a means of coordination. Argument for procedure as defined for each individual procedures. This table is a complementary table to PROC_INITIATE_TBL (Table 07). This table contains a response, which gets posted to Table 08 as a result of a write to PROC_INITIATE_TBL (Table 07). Bit field indicating procedure number executed and whether the procedure was a standard defined or a manufacturer defined. Supplied by initiator of the procedure PROC_INITIATE_TBL (Table 07). Returned with response as a means of coordination. Code which identifies the status of the procedure execution. Procedure response record as defined for individual procedures in PROC_INITIATE_TBL (Table 07). RESP_DATA_RCD is posted if procedure was successfully completed (RESULT_CODE = 0) and SELECTOR in PROC_INITIATE_TBL (Table 07) is not set to a value of 2. This procedure causes the end device to return to a manufacturer default known state. All data values, programs and conditions may be lost. Communication may be broken. If an Event Log exists, an attempt shall be made to retain it. This procedure causes the end device to return to a "power-up" state. Communication may be broken. This procedure causes the end device to save its active configuration. This procedures causes the end device to purge generated data fields but retain programming fields. Data fields to be purged are specified by the device manufacturer. When invoked, the end device attempts to reset list control variables to their initial state. To execute this procedure, the initiator shall in addition be required to have access permission to the procedure and write access permission to the table containing the selected list(s). List selected When invoked, the end device attempts to reduce the list variable NBR_UNREAD_ENTRIES by the value specified. To execute this procedure, the initiator shall in addition be required to have access to the procedure and write access to the table containing the selected list(s). List selected Number of entries confirmed. This procedure changes the operational modes in the end device. The mode the device is in after the execution of this procedure. When invoked, the end device attempts to clear all standard status flags. When invoked, the end device attempts to clear all manufacturer status flags. When invoked, this procedure attempts to perform the specified combination of resets and change of season. The following resets are supported: Self Read, Demand Reset, and Season Change. Bit mask denotes the reset actions to perform. Season to change to if SEASON_CHANGE bit is set. Indicates which "resets" were successful by setting corresponding bits. The season number the end device changed to if SEASON_CHANGE bit was set. This procedure attempts to set the date and/or time in the end device. Bit mask denotes the actions to perform. New date and time. Date and time in the end device just before set date time procedure was executed. Date and time in the end device just after set date time procedure was executed. This procedure initiates an end device diagnostic procedure. This procedure causes the end device to immediately activate all pending tables regardless of activation trigger(s). This procedure causes the end device to immediately activate any pending table(s) with the specified activation trigger. This procedure causes the end device to immediately clear the pending state all pending tables. This procedure causes the end device to immediately clear the pending status of all pending table(s) with the specified activation trigger. This procedure starts all defined load profile sets. This procedure stops all active load profile sets. When invoked, this procedure establishes the active USER_ID that is used in the HISTORY_LOG_TBL (Table 74) and in the EVENT_LOG_TBL (Table 76) and supplies a password. ID associated with current user. Note: USER_ID of zero and USER_ID of one should be avoided since it represents an end device initiated event and manually initiated event respectively in the loggers. Password supplied. The first character of the password shall be placed in the zero element of the array. Deactivates the USER_ID and password. This decade contains tables associated with data sources. This table contains maximum dimensions and end device capabilities for establishing data sources. Power fail exclusion is defined as ignoring demand for maximum calculations for some period immediately after a power failure. Reset exclusion is defined as inhibiting demand reset for some period after a reset. Bit fields that indicate what demand and TOU register functions the end device is capable of performing. Maximum number of entries in UOM_ENTRY_TBL (Table 122). Maximum number of entries in the DEMAND_CONTROL_TBL (Table 13). Manufacturer supplied value that determines the width in octets of an entry in the first array of the DATA_CONTROL_TBL (Table 14). Maximum number of entries in the DATA_CONTROL_TBL (Table 14). Maximum number of entries in the CONSTANTS_TBL (Table 15). This value is the selector for the record structure used in the CONSTANTS_TBL (Table 15). Maximum number of entries in the SOURCES_TBL (Table 16). This table contains the actual parameters of Table 10 the end device has been configured with. Power fail exclusion is defined as ignoring demand for maximum calculations for some period immediately after a power failure. Reset exclusion is defined as inhibiting demand reset for some period after a reset. Bit fields that indicate what demand and TOU register functions are in use by the end device as configured. Actual number of entries in UOM_ENTRY_TBL (Table 12). Actual number of entries in the DEMAND_CONTROL_TBL (Table 13). Manufacturer defined number of octets in an element of the array of the DATA_CONTROL_TBL (Table 14). Actual number of entries in the DATA_CONTROL_TBL (Table 14). Actual number of entries in the CONSTANTS_TBL (Table 15). This value is the selector for the record structure used in the CONSTANTS_TBL (Table 15). Actual number of entries in the SOURCES_TBL (Table 16). This table provides a method for describing data attributes. It may be used to tag data sources. The UOM ID_CODE identifies the physical quantity of interest (equivalent to physical units in the field of physics as used for dimensional analysis). The standard defines entries for use by the Water, Gas, or Electrical Utilities and provides for generic entries for description of internal data items. The defined units of measure have been grouped solely for readability purposes. Note that because the unit of measure record includes a time base indicator some of the units have an extra time factor that is canceled out by the unit of measure record time base indicator. For example, ID_CODE 77, Therm per Hr is actually Therm once the time base indicator is properly set. This field describes the measurement method with respect to time. The multiplier identifies the scaling value to apply to the reported value after delivery of the tagged item; e.g. if the ID_CODE = 0 and MULTIPLIER = 2 then the UOM represents kW (other flags are assumed to have been set accordingly). Indication that tagged quantity lies in Quadrant 1 of the two-dimensional cartesian co-ordinate system; eg. x ³ 0, y ³ 0. Indication that tagged quantity lies in Quadrant 2 of the two-dimensional cartesian co-ordinate system; eg. x ² 0, y ³ 0. Indication that tagged quantity lies in Quadrant 3 of the two-dimensional cartesian co-ordinate system; eg. x ² 0, y ² 0. Indication that tagged quantity lies in Quadrant 4 of the two-dimensional cartesian co-ordinate system; eg. x ³ 0, y ² 0. This bit is required to identify the manner in which the quadrants specified are being summed. When the ID_CODE field represents the electric utility industry unit of measures this bit indicates phase measurement associations. When the ID_CODE does not represent an electric utility unit of measure then this field represents an as yet to be defined quantity, except for the value 0, which stands for all sources and flows. This identifies harmonic related quantities. Bit used to indicate that this unit of measure entry does not follow the unit of measure definition in some manner Each of the entries in this array is associated to an entry in the SOURCES_TBL (Table 16). This array contains one entry for each SOURCES_TBL (Table 16) entry having the UOM_ENTRY_FLAG set. The order of the parameters in this array corresponds to the order of the sources in table SOURCES_TBL (Table 16). This table contains information pertaining to the application of rates and global rate controls. The number of minutes in the subinterval. The multiplier by which the SUB_INT is multiplied. The length of the demand interval in minutes. Number of minutes after demand reset to exclude additional reset action. Number of seconds after a power failure occurs until a valid power failure is recorded and a specified action is initiated. Number of minutes after a valid power failure occurs to inhibit demand calculations. Number of minutes after a valid power failure occurs to provide cold load pickup functions. Each of the entries in this array is associated to an entry in the SOURCES_TBL (Table 16). This array contains one entry for each SOURCES_TBL (Table 16) entry having the DEMAND_CTRL_FLAG set. The order of the parameters in this array corresponds to the order of the sources in table SOURCES_TBL (Table 16). This table contains the data source information that serves as data input sources for the following tables. This table serves as an interface between areas of the end device considered manufacturer specific and the areas of the end device to be standardized. Each entry in the table is manufacturer defined. Examples of entries into this table are: entry contains address of data to be processed; or entry contains data to be processed. Each entry in this array is defined by the manufacturer as to length and content. The length is identical for all entries. Each of the entries in this array is associated to an entry in the SOURCES_TBL (Table 16). This array contains one entry for each SOURCES_TBL (Table 16) entry having the DATA_CTRL_FLAG set. The order of the parameters in this array corresponds to the order of the sources in table SOURCES_TBL (Table 16). This table contains the record structures supporting constants for application to the sources. This table has been designed for easy inclusion of new constants structures. Flow pressure calibration zero offset. Flow pressure calibration full scale. Pressure for base condition this value is absolute base pressure. Flow temperature calibration zero offset. Flow temperature calibration full scale. Temperature for base condition. Flow Differential pressure calibration zero offset. (used for AGA 3 only) Flow Differential pressure calibration full scale. The pipe diameter of an orifice meter. (used for AGA 3 only) The orifice diameter of an orifice meter. (used for AGA 3 only) Factor to provide other possible correction to the gas corrected volume. Factor is used to correct the uncorrected gas volume using AGA3. (used for AGA 3 only) Record structure from above. Tap configuration. (used for AGA 3 only) Factor to provide other possible correction to the gas corrected volume. Factor is used to correct the uncorrected gas volume using AGA3. (used for AGA 7 only) Energy calibration zero offset. Energy calibrations full scale. This parameter is used to disable the AGA3 flow calculations when differential pressure is below the value indicated by this parameter. (used for AGA 3 only) Ratio of intermediary device to allow interface of commodity flow to utility meters. For example, electric utilities use a current transformer to reduce the current at the meter. Transforming 2000 amps to 5 amps is a ratio of 400. Ratio of intermediary device to allow interface of commodity pressure to utility meters. For example, electric utilities use a voltage transformer to reduce the voltage at the meter. Transforming 7200 volts to 120 volts is a ratio of 60. Storage for a value used in multiplication/division adjustment. Storage for a value used in addition/subtraction adjustment. Storage variable for the first set of constants and associated flags. Storage variable for the second set of constants and associated flags. Structure that selects the constant record structure to use. Each of the entries in this array is associated to an entry in the SOURCES_TBL (Table 16). This array contains one entry for each SOURCES_TBL (Table 16) entry having the CONSTANTS_FLAG set. The order of the parameters in this array corresponds to the order of the sources in table SOURCES_TBL (Table 16). This table contains the information regarding the sources selected by the other tables. This decade contains tables associated with registers for measured values. These registers can be accumulating (energy), demand, TOU, instantaneous or other(s) as appropriate. This table specifies the maximum dimensional values for measured values registers. The constants defined are used for setting the absolute maximum limits of arrays used in the transport of these values. Indicates whether daily self reads are supported. These readings are taken at 00:00:00 if DATE_TIME_FIELD_FLAG is set to false. Indicates whether weekly self reads are supported. These readings are taken at 00:00:00 on Sunday if DATE_TIME_FIELD_FLAG is set to false. Specifies whether the device is capable of performing a self read whenever a demand reset (any method) is performed and whether the device is capable of performing a demand reset whenever a self read (any method) is performed. Maximum number of Self Reads supported by end device. Maximum number of summation registers in each data block. Maximum number of demand registers in each data block. Maximum number of coincident values saved concurrently in each data block. Maximum number of occurrences stored for a particular selection. Maximum number of tiers that data can be stored in. Maximum number of present demand values that can be stored. Maximum number of present values that can be stored. This table contains actual function values for registers. Indicates whether daily self reads are in use. These readings are taken at 00:00:00 if DATE_TIME_FIELD_FLAG is set to false. Indicates whether weekly self reads are in use. These readings are taken at 00:00:00 on Sunday if DATE_TIME_FIELD_FLAG is set to false. Specifies whether the device will perform a self read whenever a demand reset (any method) is performed and whether the device will perform a demand reset whenever a self read (any method) is performed. Number of Self Reads in use. Number of summation registers in each data block. Number of demand registers in each data block. Number of coincident values saved in each data block. Number of occurrences stored for a particular selection. Number of tiers in use. Number of present demand values that are stored. Number of present values that are stored. This table contains grouped lists of source indices. These indices point towards array elements in SOURCES_TBL (Table 16) when this table is present. These lists are used to build the table that contains the data to be captured. The groupings are described below. A list of source indices that groups together bulk/energy/summation sources. A list of source indices that groups together demand sources. A set of bit flags, each corresponding to an entry in DEMAND_SELECT. A list of source indices that groups together demand sources with time period processing equal to that of the DEMAND_SELECT sources. Each entry corresponds to an entry in COINCIDENT_SELECT and provides an index into DEMAND_SELECT identifying the demand for which this coincident value is taken. This table contains the current register data. Coincident values selected by DATA_SELECTION_TBL.COINCIDENT_SELECT (Table 22) Array that contains the date and time of each minimum or maximum recorded. Entry in position 0 corresponds to the entry in position 0 of the DEMAND array. The presence of this field is dependent on capability flag in the ACT_REG_TBL.DATE_TIME_FIELD_FLAG (Table 21). The value of the cumulative demand register. The value of the continuous cumulative demand register. Array that contains the minimums or maximums values. The value in position zero is the smallest minimum or largest maximum. In position 1 is the second smallest minimum or the second largest maximum and so on until the end of the array is reached. Array that contains the values of the selected summation measurements. Array that contains the values of the selected min/max demand measurements. Array that contains the values of the selected measurement coincident to the selected minimum/maximum demands. Indicates the number of demand resets executed by the end device. Data block independent of Time of Use structures or other means of selection. Data block dependent on Time of Use structures or other means of selection. This table contains a snapshot of the current register data taken at the last season change. The end device time when the snapshot of the current register data occurred. Current season value when the snapshot of the current register data occurred. Contains a snapshot of the CURRENT_DATA_REG_TBL (Table 23). stored at the time of the last season change. See definition in CURRENT_DATA_REG_TBL (Table 23). This table contains a snapshot of the current register data taken at the time of the last demand reset. Contains snapshot of register information included with previous demand reset register data. Contains a snapshot of the CURRENT_DATA_REG_TBL (Table 23) stored at the time of the last demand reset. This table contains self read data. Snapshots of current register data shall be taken from time to time by some sort of self read function. Sequence number assigned to the self read measurement. This number is initialized to 0 when the end device is configured. This number is incremented with each self read occurrence. Contains a snapshot of register data taken at the time of the self read. A snapshot of current register data taken when requested by any means offered by the end device. The same value as ACT_REG_TBL.SELF_READ_INHIBIT_OVERFLOW (Table 21). Number of valid self reads stored in the self reads array. The range is zero (meaning no self reads in the array) to the actual dimension of the number of self reads. The array element number of the newest valid entry in the self read array. This field is valid only if NBR_VALID_ENTRIES is greater than zero. The sequence number of the last element in the self read array. The number of self read entries that have not been read. This number is only updated by a procedure. An array of snapshots of register data taken at a prescribed instance in time. This table provides selections to sources of present demands and present values. These indices point towards array elements in SOURCES_TBL (Table 16) when Table 16 is present. The values selected are available in PRESENT_REGISTER_DATA_TBL (Table 28). Array that contains data source selectors used to measure present demand. The present demand values shall be reported at the same index position in PRESENT_REGISTER_DATA_TBL. PRESENT_DEMAND (Table 28). Array that contains data source selectors used to measure present value. The present values shall be reported at the same index position in PRESENT_REGISTER_DATA_TBL.PRESENT_VALUES (Table 28). This table contains the present demand and values as selected by the PRESENT_REGISTER_SELECT_TBL (Table 27). These indices point towards array elements in SOURCES_TBL (Table 16) when Table 16 is present. Time remaining to the end of the present demand interval The present demand value. Array that contains present demand selected by PRESENT_REGISTER_SELECT_TBL.PRESENT_DEMAND_SELECT (Table 27). Array that contains present demand selected by PRESENT_REGISTER_SELECT_TBL.PRESENT_DEMAND_SELECT (Table 27). This decade contains tables associated with the transport of information required to establish a local display. This table specifies the maximum dimensional values for local display operation in an end device. The constants defined are used for setting the absolute maximum limits of display array sizes. Maximum number of display sources. A number representing the maximum number of manufacturer defined display sources, described in DISP_SOURCE_TBL (Table 32), and which may be used for the creation of display lists. Maximum number of octets a manufacturer may use to define the row width of all entries in DISP_SOURCE_TBL (Table 32). Maximum number of primary display items per display list defined in PRI_DISP_LIST_TBL (Table 33). The maximum number of items in all primary display lists shall not exceed this value. Maximum number of primary display lists defined in PRI_DISP_LIST_TBL (Table 33). Maximum number of secondary display items per display list defined in SEC_DISP_LIST_TBL (Table 34). The maximum number of items in all secondary display lists shall not exceed this value. Maximum number of secondary display lists defined in SEC_DISP_LIST_TBL (Table 34). This table specifies the actual dimensional values for local display operation in an end device. The dimensions defined are used for setting the actual limits of display array sizes. Actual number of display sources. A number representing the actual number of manufacturer defined display sources, described in DISP_SOURCE_TBL (Table 32), and which should be used for the creation of display lists. Actual number of octets a manufacturer uses to define the row width of all entries in DISP_SOURCE_TBL (Table 32). Actual number of primary display items per display list defined in PRI_DISP_LIST_TBL (Table 33). The total number of items in all primary display lists shall not exceed this value. Actual number of primary display lists defined in PRI_DISP_LIST_TBL (Table 33). Actual number of secondary display items per display list defined in SEC_DISP_LIST_TBL (Table 34). The total number of items in all secondary display lists shall not exceed this value. Actual number of secondary display lists defined in SEC_DISP_LIST_TBL (Table 34). This table defines the dimensions and size of manufacturer defined display identifications and format characteristics. Although manufacturer specific, this table's designation and dimensions (ACT_DISP_TBL.WIDTH_DISP_SOURCES by ACT_DISP_TBL.NBR_DISP_SOURCES) (Table 31), permit the protocol to deposit local display description information. The actual interpretation of each display entry is not defined by this standard. The entry offsets to individual items in this table are used in display scroll sequences entered in tables PRI_DISP_LIST_TBL (Table 33) and SEC_DISP_LIST_TBL (Table 34). Manufacturer defined display description entry. These entries make up the DISP_SOURCE_TBL (Table 32). Indices to these entries (starting with 0) are used in subsequent display scrolling sequences. Manufacturer defined display description entries. This array contains the manufacturer defined display description entries. This table contains a list of operational parameters and references into the table, DISP_SOURCE_TBL, (Table 32) necessary for programming the primary display lists, timing, and scroll sequences. The number of seconds each display item is displayed. The number of seconds display is blank between display items. 0 = No deliberate OFF Time. The number of minutes to wait before automatically restarting the normal display scroll after hold has been initiated. Associates this display list with a standard display list type. The "normal" display list scrolling resumes after HOLD_TIME has expired. This contains the ON_TIME and OFF_TIME values for the associated list. This contains the HOLD_TIME and DEFAULT_LIST values for the associated list. Number of items in this display list. The total number of items (list entries) in all display lists of this table shall not exceed ACT_DISP_TBL.NBR_PRI_DISP_LIST_ITEM (Table 31). An array of list descriptor records. Ordered list of references to display items contained in DISP_SOURCE_TBL (Table 32). This list establishes the order of the primary display. This standard does not preclude additional items from popping up or being displayed out of sequence as a result of an end device error condition or an end device status report being generated. This table contains a list of operational parameters and references into the table, DISP_SOURCE_TBL, (Table 32) necessary for programming the secondary display lists, timing, and scroll sequences. An array of list descriptor records. Ordered list of references to display items contained in DISP_SOURCE_TBL (Table 32). This list establishes the order of the secondary display. This standard does not preclude additional items from popping up or being displayed out of sequence as a result of an end device error condition or an end device status report being generated. The security tables provide holding areas for the placement of end device passwords and Encryption/Authentication keys used to establish group access permissions. Access permissions are used to limit table read or write access and procedure execute permissions to groups of users based on the interpretation of the password and encryption/authentication fields. The exact means for granting access are not defined by this standard. This table defines the maximum number of passwords and security access level entries supported by the end device. Maximum number of passwords this end device is capable of supporting. Maximum length of passwords in octets this end device is capable of supporting. Maximum number of keys for authentication/encryption this end device is capable of supporting. Maximum length of keys in octets this end device is capable of supporting. Maximum number of user defined security access entries end device supports in addition to those defined through default access permissions. This table defines the actual number of passwords and security access level entries supported by the end device. Actual number of passwords used by this end device. Actual length of passwords in octets this end device is supporting. Actual number of keys this end device is supporting. Actual length of keys this end device is supporting. Actual number of user defined security access entries end device supports in addition to those defined through default access permissions. This table stores actual end device passwords. It is used to associate passwords with read, write and procedure execute access permission bits. Any table or procedure whose access control bits match with respect to position at least one of the group access permissions bits, defined in SECURITY_TBL (Table 42) for the supplied password, can become a candidate for data transfers. Notes: 1. Although it may be possible to read the security table, the values reported (read back) are not defined by this standard. 2. When access permissions are given to a procedure that accesses or modifies table data, then the invoker of that procedure shall in addition be required to have read or write access to the table that is read or modified. 3. When access permissions are given to a User Defined table, which accesses or modifies other tables, then the invoker of that User Defined table shall in addition be required to have read or write access to the tables indirectly read or written. Password to be matched and be associated with group access permission bits. Group access permissions bits for this password. Array containing a list of security limiting parameters. This table is used to establish default table and procedure access permissions. These permissions are applied to any table that is not included in the ACCESS_CONTROL_TABLE (Table 44). Read and write access permissions for unrecognized users as defined above. Group security access permission bits for users that have been recognized and request read access to tables that are not listed in the ACCESS_CONTROL_TBL (Table 44). Group security access permission bits for users that have been recognized and request write access to tables that are not listed in the ACCESS_CONTROL_TBL (Table 44). Default access control for all tables, except the PROC_INITIATE_TBL (Table 07). Default access control for all procedures using PROC_INITIATE_TBL (Table 07). This table establishes table and procedure access permissions on a per table and per procedure basis for those tables not using the default access level. Table or procedure number associated with this access permission entry. Table identification and public access control. Group read access control bits. Group write access control bits. Array containing access permission for specific table or procedure. This table contain authentication and/or encryption keys. Note: Although it may be possible to read the KEY_TBL (Table 45), the values reported (read back) are not defined by this standard. A key to be applied in the authentication and/or encryption processes. Use of any key is not defined by this standard. Array of keys used to establish authentication and/or encryption. The tables in this decade provide information related to end device Date and Time and Time Of Use (TOU) operation. This table defines the maximum capabilities for Date and Time clock control and Time of Use (TOU) control for the end device. Maximum number of seasons supported by this end device. Maximum number of special schedules supported by this end device. Maximum number of non-recurring dates supported by the end device calendar. Each entry allows the control of one or more events like demand reset, self read, daylight savings time, season change and special schedule. Maximum number of recurring dates supported by the end device calendar. Each entry allows the definition of a recurring event like demand reset, self read, daylight savings time, season change and special schedule. Maximum number of tier switches supported by the end device calendar. This number comprises the total collection of tier switches for all day types in the CALENDAR_TBL.-DAILY_SCHEDULE_ID_MATRIX (Table 54). Maximum octets of data transported by CALENDAR_TBL (Table 54). This includes recurring dates, non-recurring dates and tier switches. Anchor date is counted even if it is unused. This table defines the actual capabilities for Date and Time clock control limits and Time of Use (TOU) control limits for the end device. The data structure of this table is identical to DIM_TIME_TOU_TBL (Table 50). Elements are defined below. Actual number of seasons in use by the end device. Actual number of special schedules in use by the end device. Actual number of non-recurring dates supported by the end device calendar. Each entry allows the control of one or more events like demand reset, self read, daylight savings time, season change and special schedule. Actual number of recurring dates supported by the end device calendar. Each entry allows the definition of a recurring event like demand reset, self read, daylight savings time, season change and special schedule. Actual number of tier switches supported by the end device calendar. This number comprises the total collection of tier switches for all day types in the CALENDAR_TBL.-DAILY_SCHEDULE_ID_MATRIX (Table 54). Actual octets of data transported by CALENDAR_TBL (Table 54). This includes the recurring dates, non-recurring dates and tier switches. This table provides the end device real time clock information. Status qualifying the end device time. Current day of the week. Daylight savings time status. Current end device time. This table provides time zone offset and daylight savings time information for the end device. The time of day the end device shifts to or from daylight savings time. The date of occurrence is based on entries in the CALENDAR_TBL (Table 54) and the ACT_TIME_TOU_TBL.CAP_DST_AUTO_FLAG (Table 51) flag. End device daylight savings time adjustment specified in minutes. Offset for end device, representing the number of * 1 minute segments of end device time offset. This table is the schedule definition table for TOU metering activities. Number specifying the calendar action that takes place on the date specified. Daylight Savings Time On/Off Daylight Savings Time On and Off actions causes a time adjustment to be made at TIME_OFFSET_TBL.DST_TIME_EFF (Table 53) time. If TIME_OFFSET_TBL (Table 53) is not supported, the time adjustment is made at 02:00 A.M. and the effectivity amount equals 1 hour. If ACT_TIME_TOU_TBL.CAP_DST_AUTO_ FLAG (Table 51) = TRUE then Daylight Savings Time On/Off actions in this table are ignored. Season Changes If ACT_TIME_TOU_TBL.SEASON_CHNG_ ARMED_FLAG (Table 51) = FALSE, a season change action causes a season change to occur at 00:00 A.M. hours on the date specified. If ACT_TIME_TOU_TBL.SEASON_CHNG_ARMED_FLAG (Table 51) = TRUE, a season change action "arms" a season change, but the season change will not occur until the next demand reset. If ACT_TIME_TOU_TBL.SEASON_DEMAND _RESET_FLAG (Table 51) = TRUE, a season change causes a demand reset to occur automatically. A self read of the current register data is saved in the SELF_READ_DATA_TBL (Table 26) if ACT_TIME_TOU_TBL.SEASON_SELF_READ_FLAG (Table 51) = TRUE when the season change occurs. If GEN_CONFIG_TBL.STD_TBLS_USED.-PREVIOUS_SEASON_DATA_TBL (Table 00) = TRUE, a season change causes a copy of the current register data to be saved in the PREVIOUS_SEASON_DATA_TBL (Table 24) Special Schedules Special schedules are used for holidays or other special daily schedules. These schedules take effect at midnight (00:00 A.M.) and end 24 hours later (23:59 P.M.). The special schedule takes precedence over the normal day of week schedule. End of List End of List Action is to notify the utility that the CALENDAR_TBL (Table 54) entries are approaching expiration. Notification is by history message, display, or other means defined by the device manufacturer. If GEN_CONFIG_TBL.STD_TBLS_USED. PREVIOUS_DEMAND_RESET_DATA_TBL (Table 00) = TRUE, a Demand Reset causes data to be saved in PREVIOUS_DEMAND_ RESET_DATA_TBL (Table 25). If ACT_REGS_TBL.SELF_READ_DEMAND_ RESET_FLAG (Table 21) = 1 or 3, a self read shall occur in conjunction with the demand reset. If ACT_REGS_TBL.SELF_READ_DEMAND _RESET_FLAG (Table 21) = 2 or 3, a demand reset shall occur in conjunction with the self read. Date definition of a recurring event. The recurrence can be yearly, monthly, or weekly. The recurring event is referenced to midnight. Defined action that shall take place on this date. Non-recurring event date. Action shall occur at midnight. Defined action that shall take place on this date. Identifies the tier number that becomes effective at the time specified in the tier switch on the daily schedule type defined by the DAILY_SCHEDULE_ID_MATRIX. Specifies whether or not this tier switch selects a new tier for summations. Only used when ACT_TIME_TOU_TBL.SEPARATE_SUM_ DEMANDS_FLAG (Table 51) = TRUE. Specifies whether or not this tier switch selects a new tier for demands. Only used when ACT_TIME_TOU_TBL.SEPARATE_SUM_ DEMANDS_FLAG (Table 51) = TRUE. Minute when the tier switch occurs. Hour when the tier switch occurs. Defines a switch point for a certain day type defined by the DAILY_SCHEDULE_ID_ MATRIX. Specifies the daily schedule type associated with the tier switch. All identifiers are stored in the DAILY_SCHEDULE_ID_MATRIX. Daily schedule type programmed for Sunday. Daily schedule type programmed for Monday. Daily schedule type programmed for Tuesday. Daily schedule type programmed for Wednesday. Daily schedule type programmed for Thursday. Daily schedule type programmed for Friday. Daily schedule type programmed for Saturday. Daily schedule type programmed for each special schedule. Daily schedule type programmed for Saturday. Daily schedule type programmed for Sunday. Daily schedule type programmed for Monday to Friday. Daily schedule type programmed for each special schedule. Anchor date is only used in conjunction with an RDATE type recurring date using the PERIOD/OFFSET mechanism. See Section 6.3.2, RDATE Type. If specified, any recurring date using the PERIOD/OFFSET type shall use this date as a starting date. Array containing non-recurring dates. Array containing recurring dates. Array that contains the tier switches. Two-dimensional array containing daily schedule type identifiers. Each entry in the array consists of a single octet type identifier value. The identifier is used to tie tier switch entries to specific daily schedules. An example of a daily schedule is Special Schedule 1 in Season 2 or Saturday Day Type in Season 1. The assignment of identifier codes is left to the utility’s discretion. This table provides the end device real time clock information. Array of status entries of each TOU set. Active tier corresponding to summations. This variable is only used when the capability flag ACT_TIME_TOU_TBL.-SEPARATE_SUM_DEMANDS_FLAG (Table 51) = TRUE. Active tier corresponding to demands. This variable is only used when the capability flag ACT_TIME_TOU_TBL.-SEPARATE_SUM_DEMANDS_FLAG (Table 51) = TRUE. Number representing the tier that is currently active in the meter. This variable is only used when the capability flag ACT_TIME_TOU_TBL.-SEPARATE_SUM_DEMANDS_FLAG (Table 51) = FALSE. Tier drive source code. Current end device season number. Current end device time. These tables provide structures for load profile data. This table contains function limiting constants for the load profile application. These parameters provide for up to four independent sets of load profile data. This bit field specifies load profile list management capabilities. This set of booleans specifies the format(s) acceptable for use in DIM_LP_TBL (Table 60) and ACT_LP_TBL (Table 61). The information defining how each set of load profile information works. The maximum number of octets of storage available for load profile data. This reflects the combined sizes of tables LP_DATA_SET1_TBL (Table 64), LP_DATA_SET2_TBL (Table 65), LP_DATA_SET3_TBL (Table 66), and LP_DATA_SET4_TBL (Table 67). The maximum number of interval data blocks which can be contained in LP_DATA_SET1_TBL (Table 64). The maximum number of intervals per data block which can be contained in LP_DATA_SET1_TBL (Table 64). The maximum number of channels of load profile data which can be contained in LP_DATA_SET1_TBL (Table 64). The maximum time in minutes for load profile interval duration which can be contained in LP_DATA_SET1_TBL (Table 64). The maximum number of interval data blocks which can be contained in LP_DATA_SET2_TBL (Table 65). The maximum number of intervals per data block which can be contained in LP_DATA_SET2_TBL (Table 65). The maximum number of channels of load profile data which can be contained in LP_DATA_SET2_TBL (Table 65). The maximum time in minutes for load profile interval duration which can be contained in LP_DATA_SET2_TBL (Table 65). The maximum number of interval data blocks which can be contained in LP_DATA_SET3_TBL (Table 66). The maximum number of intervals per data block which can be contained in LP_DATA_SET3_TBL (Table 66). The maximum number of channels of load profile data which can be contained in LP_DATA_SET3_TBL (Table 66). The maximum time in minutes for load profile interval duration which can be contained in LP_DATA_SET3_TBL (Table 66). The maximum number of interval data blocks which can be contained in LP_DATA_SET4_TBL (Table 67). The maximum number of intervals per data block which can be contained in LP_DATA_SET4_TBL (Table 67). The maximum number of channels of load profile data which can be contained in LP_DATA_SET4_TBL (Table 67). The maximum time in minutes for load profile interval duration which can be contained in LP_DATA_SET4_TBL (Table 67). This table contains actual values for the load profile application limiting parameters. These parameters provide for up to four independent sets of load profile data. This bit field specifies load profile list management capabilities. This set of booleans specifies the format(s) in use in LP_CTRL_TBL (Table 62). The information defining how each set of load profile information works. The current number of octets of storage being used for load profile data. This reflects the combined sizes of tables LP_DATA_SET1_TBL (Table 64), LP_DATA_SET2_TBL (Table 65), LP_DATA_SET3_TBL (Table 66), and LP_DATA_SET4_TBL (Table 67). The actual number of interval data blocks in use in LP_DATA_SET1_TBL (Table 64). The actual number of intervals per data block contained in LP_DATA_SET1_TBL (Table 64). The actual number of channels of load profile data contained in LP_DATA_SET1_TBL (Table 64). The actual interval duration in minutes for load profile contained in LP_DATA_SET1_TBL (Table 64). The actual number of interval data blocks in use in LP_DATA_SET2_TBL (Table 65). The actual number of intervals per data block contained in LP_DATA_SET2_TBL (Table 65). The actual number of channels of load profile data contained in LP_DATA_SET2_TBL (Table 65). The actual interval duration in minutes for load profile contained in LP_DATA_SET2_TBL (Table 65). The actual number of interval data blocks in use in LP_DATA_SET3_TBL (Table 66). The actual number of intervals per data block contained in LP_DATA_SET3_TBL (Table 66). The actual number of channels of load profile data contained in LP_DATA_SET3_TBL (Table 66). The actual interval duration in minutes for load profile contained in LP_DATA_SET3_TBL (Table 66). The actual number of interval data blocks in use in LP_DATA_SET4_TBL (Table 67). The actual number of intervals per data block contained in LP_DATA_SET4_TBL (Table 6 The actual number of channels of load profile data contained in LP_DATA_SET4_TBL (Table 67). The actual interval duration in minutes for load profile contained in LP_DATA_SET4_TBL (Table 67). This table defines the data sources and formats used in the collection of load profile data. Flags associated with a particular channel. This is an index into SOURCES_TBL (Table 16) that identifies source of the interval data for a specific channel. This is an index into SOURCES_TBL (TABLE 16) that identifies source of the block end time reading data for a specific channel. Record that stores all information concerning each of the selected channels. This is an array of records containing indices into the SOURCES_TBL (TABLE 16) that identifies sources of data for each channel of interval data in LP_DATA_SET1_TBL (Table 64). This is a single code selecting the format for all interval data in LP_DATA_SET1_TBL (Table 64). An array of scalars applied to interval data before recording pulse data in load profile set 1. An array of divisors applied to interval data before recording pulse data in load profile set 1. This is an array of records containing indices into the SOURCES_TBL (TABLE 16) that identifies sources of data for each channel of interval data in LP_DATA_SET2_TBL (Table 65). This is a single code selecting the format for all interval data in LP_DATA_SET2_TBL (Table 65). An array of scalars applied to interval data before recording pulse data in load profile set 2. An array of divisors applied to interval data before recording pulse data in load profile set 2. This is an array of records containing indices into the SOURCES_TBL (TABLE 16) that identifies sources of data for each channel of interval data in LP_DATA_SET3_TBL (Table 66). This is a single code selecting the format for all interval data in LP_DATA_SET3_TBL (Table 66). An array of scalars applied to interval data before recording pulse data in load profile set 3. An array of divisors applied to interval data before recording pulse data in load profile set 3. This is an array of records containing indices into the SOURCES_TBL (TABLE 16) that identifies sources of data for each channel of interval data in LP_DATA_SET4_TBL (Table 67). This is a single code selecting the format for all interval data in LP_DATA_SET4_TBL (Table 67). An array of scalars applied to interval data before recording pulse data in load profile set 4. An array of divisors applied to interval data before recording pulse data in load profile set 4. This table contains the status of each load profile data set. The same value as ACT_LP_TBL.LP_SETn_INHIBIT_OVF_FLAG. Number of valid load profile data blocks in load profile data tables LP_DATA_SET1_TBL (Table 64), LP_DATA_SET2_TBL (Table 65), LP_DATA_SET3_TBL (Table 66), and LP_DATA_SET4_TBL (Table 67), load profile block arrays. The range is zero (meaning no data blocks in load profile Data Table) to the actual dimension of the number of load profile data blocks. The block is considered valid when at least one interval is written. The array element of the newest valid data block in the load profile data array. This field is valid only if NBR_VALID_BLOCKS is greater than zero. The sequence number (LP_SEQ_NBR) of the last element (LAST_BLOCK_ELEMENT) in the load profile data array. The number of load profile blocks that have not been read. This number is only updated through a procedure. Number of valid intervals stored in the last load profile block array. The range is zero (meaning no interval in the array) to the actual dimension of the number of intervals per block. Status information for profile data set 1. Status information for profile data set 2. Status information for profile data set 3. Status information for profile data set 4. This table contains information on load profile data set one. Selector for the format of the channel data. Daylight savings time is in effect during or at start of interval Power fail within interval Clock reset forward during interval Clock reset backwards during interval This is an array of interval values for each channel in the block, recorded at a single time. Channels are presented in the same order. The order of the channels matches their definition in LP_CTRL_TBL (Table 62). The value of the block end reading both data and readings. The values of the accumulator at the end of a user defined interval. This parameter contains the ending date and time of the last interval of data entered in this data block. This is an array of readings of the end reading sources, taken at the interval end time of the last interval of data entered in the block. One end reading is provided for each channel in the block. The order of the readings matches their definition in LP_CTRL_TBL (Table 62). The format is controlled by READING_RCD. This is a set of status bits, one per interval, that specifies whether the corresponding interval is valid. This is an array of interval records in the block. Intervals are stored in an chronological order, specified by INTERVAL_ORDER, with the oldest reading set appearing in the first record. This is an array of load profile data blocks. This table contains information on load profile data set two. Selector for the format of the channel data. This is an array of interval values for each channel in the block, recorded at a single time. Channels are presented in the same order. The order of the channels matches their definition in LP_CTRL_TBL (Table 62). This parameter contains the ending date and time of the last interval of data entered in this data block. This is an array of readings of the end reading sources, taken at the interval end time of the last interval of data entered in the block. One end reading is provided for each channel in the block. The order of the readings matches their definition in LP_CTRL_TBL (Table 62). The format is controlled by READING_RCD. This is a set of status bits, one per interval, that specifies whether the corresponding interval is valid. This is an array of interval records in the block. Intervals are stored in an chronological order, specified by INTERVAL_ORDER, with the oldest reading set appearing in the first record. This is an array of load profile data blocks. This table contains information on load profile data set three. Selector for the format of the channel data. This is an array of interval values for each channel in the block, recorded at a single time. Channels are presented in the same order. The order of the channels matches their definition in LP_CTRL_TBL (Table 62). This parameter contains the ending date and time of the last interval of data entered in this data block. This is an array of readings of the end reading sources, taken at the interval end time of the last interval of data entered in the block. One end reading is provided for each channel in the block. The order of the readings matches their definition in LP_CTRL_TBL (Table 62). The format is controlled by READING_RCD. This is a set of status bits, one per interval, that specifies whether the corresponding interval is valid. This is an array of interval records in the block. Intervals are stored in an chronological order, specified by INTERVAL_ORDER, with the oldest reading set appearing in the first record. This is an array of load profile data blocks. This table contains information on load profile data set four. Selector for the format of the channel data. This is an array of interval values for each channel in the block, recorded at a single time. Channels are presented in the same order. The order of the channels matches their definition in LP_CTRL_TBL (Table 62). This parameter contains the ending date and time of the last interval of data entered in this data block. This is an array of readings of the end reading sources, taken at the interval end time of the last interval of data entered in the block. One end reading is provided for each channel in the block. The order of the readings matches their definition in LP_CTRL_TBL (Table 62). The format is controlled by READING_RCD. This is a set of status bits, one per interval, that specifies whether the corresponding interval is valid. This is an array of interval records in the block. Intervals are stored in an chronological order, specified by INTERVAL_ORDER, with the oldest reading set appearing in the first record. This is an array of load profile data blocks. This decade contains the tables associated with the maintenance of the History and Event Logs. This table defines the maximum size and capabilities of the History and Event Log decade. Maximum number of octets in the set EVENTS_SUPPORTED_TBL.-STD_EVENTS_SUPPORTED (Table 72). Maximum number of octets in the set EVENTS_SUPPORTED_TBL.-MFG_EVENTS_SUPPORTED (Table 72). Maximum number of octets in the HISTORY_LOG_DATA_TBL.-HISTORY_ARGUMENT (Table 74). Maximum number of octets in the EVENT_LOG_DATA_TBL.EVENT_ARGUMENT (Table 76). Maximum number of entries in the history log in HISTORY_LOG_DATA_TBL (Table 74). Maximum number of entries in the event log in. EVENT_LOG_DATA_TBL (Table 76). This table defines the actual size and capabilities of the History and Event Log decade. Number of octets in the set EVENTS_SUPPORTED_TBL.-STD_EVENTS_SUPPORTED (Table 72). Number of octets in the set EVENTS_SUPPORTED_TBL.-MFG_EVENTS_SUPPORTED (Table 72). Number of octets in the HISTORY_ LOG_DATA_TBL.HISTORY_ARGUMENT (Table 74). Number of octets in the EVENT_ LOG_DATA_TBL.EVENT_ARGUMENT (Table 76). Actual maximum number of entries in the History Log. Actual maximum number of entries in the Event Log. This table contains the events that are supported by the end device. This set variable indicates which of the standard events are supported in the Event Log. See Annex B, History and Event Log Codes, for standard event codes. Event codes are represented by bits 0 through (8 * ACT_LOG_TBL.NBR_STD_EVENTS - 1), with a 1 representing a TRUE or implemented condition and a 0 representing a FALSE or not implemented condition. This set variable indicates which of the manufacturer events are supported in the Event Log. Events are enabled by bits 0 through (8 * ACT_LOG_TBL.NBR_MFG_EVENTS - 1), with a 1 representing a TRUE or implemented condition and a 0 representing a FALSE or not implemented condition. This table defines the History Log codes to be written to the History Log. It also defines which specific procedures and or table writes that are to be acknowledged in the History Log. For a specific procedure or table to be acknowledged, three independent tests shall all be true: 1) The procedure or table shall be used in the end device, per the GEN_CONFIG_TBL (Table 00). 2) The appropriate History Log code shall be used, per this table. 3) The procedure or table shall be requested to be acknowledged, per this table. Bit position is linearly associated with corresponding standard event code. Bit position is linearly associated with corresponding manufacturer event code. Bit position is linearly associated with corresponding standard table number Bit position is linearly associated with corresponding manufacturer table number. Bit position is linearly associated with corresponding standard procedure number. Bit position is linearly associated with corresponding manufacturer procedure number. This table provides the History Log. The same value as ACT_LOG_TBL.-HIST_INHIBIT_OVF_FLAG (Table 71). Event number logged. Not Used. Date and time of History Log entry. Event number common to both the History and Event Logs. Sequence number associated with the History Log only. The User ID associated with this History Log entry. It comes from the Log In Procedure or from a communication session initiation sequence. A USER_ID of zero means the end device initiated the event. A USER_ID of one means the event was manually initiated. Event code logged. Argument associated with a specific entry. Number of valid entries in the log. The range is from zero (meaning the log is empty) to the actual dimension of the log. The array element number of the newest valid entry in the log. The sequence number of the newest valid entry in the log. The number of entries in the log that have not yet been read. It is only changed through a procedure. Array of History Log entries. EVENT_LOG_CTRL_TBL (Table 75) defines the Event Log codes to be written to the Event Log. It also defines which specific procedures and or table writes that are to be acknowledged in the Event Log. For a specific procedure or table to be acknowledged, three independent tests shall all be true: 1) The procedure or table shall be used in the end device, per the GEN_CONFIG_TBL (Table 00). 2) The appropriate Event code shall be used, per Table 75. 3) The procedure or table shall be requested to be acknowledged, per Table 75. This data structure is identical to the structure in HISTORY_LOG_CTRL_TBL (Table 73). This table provides the Event Log. The same value as ACT_LOG_TBL.-EVENT_INHIBIT_OVF_FLAG. Event code number logged. Not Used. Date and time of Event Log entry. Event number common to both the History and Event Logs. Sequence number associated with the Event Log only. The User ID associated with this Event Log entry. It comes from the Log In Procedure or from a communication session initiation sequence. A USER_ID of zero means the end device initiated the event. A USER_ID of one means the event was manually initiated. Event code logged. Argument associated with a specific entry. Number of valid entries in the log. The range is zero (meaning the log is empty) to the actual dimension of the log. The array element number of the newest valid entry in the log. The sequence number of the newest valid entry in the log. The number of entries in the log that have not yet been read. It is only changed through a procedure. Array of Event Log entries. These tables provide the capability for the end device user to build custom tables using the tables available in an end device. This table contains maximum values and control parameters for the user defined tables. These values set up to six independent sets of user defined tables. The length of user defined tables is a function of the tables defined in the GEN_CONFIG_TBL (Table 00). The maximum number of user defined tables, which can be defined concurrently by the list of data items. Variable to designate possible methods of selecting table entries for placement in a user defined table. The maximum number of UINT16 entries used to make the list. These are the limiting capabilities for user defined tables selections. This defines the maximum number of user defined tables supported in this decade and the data access method, as defined by UDT_CTRL_BFLD. Maximum number of table sets supported by this end device. If INSTANCE_FLAG is FALSE ignore. Maximum number of octets used to size UDT_0_TBL (Table 84) Maximum number of octets used to size UDT_1_TBL (Table 85) Maximum number of octets used to size UDT_2_TBL (Table 86) Maximum number of octets used to size UDT_3_TBL (Table 87) Maximum number of octets used to size UDT_4_TBL (Table 88) Maximum number of octets used to size UDT_5_TBL (Table 89) This table contains actual limiting values for the user defined tables. These parameters define up to six independent sets of user defined tables definitions. The length of each user defined table is a function of the tables defined in the GEN_CONFIG_TBL (Table 00). The actual number of user defined tables, which are defined concurrently by the list of data items. Designate the actual method of selecting table entries for placement in a user defined table. The actual number of UINT16 entries used in the list. This is the actual method used for user defined tables selections. This identifies the actual number of user defined tables and the data access method used in this decade as defined by UDT_FLAGS_BFLD. Actual number of table sets used by this end device. If INSTANCE_FLAG is FALSE ignore. Actual number of octets used to size UDT_0_TBL (Table 84) Actual number of octets used to size UDT_1_TBL (Table 85) Actual number of octets used to size UDT_2_TBL (Table 86) Actual number of octets used to size UDT_3_TBL (Table 87) Actual number of octets used to size UDT_4_TBL (Table 88) Actual number of octets used to size UDT_5_TBL (Table 89) This table defines data elements used in the generation of user defined tables for this decade. Information source table number. Note: the corresponding implementation bit shall be set in GEN_CONFIG_TBL (Table 00). Identifies the data item as originating from either the standard table or a manufacturer table. When the DATA_ACCESS_METHOD is one this field is the most significant 4 bits (bits 16..19) of the offset to the data element required to locate the data item in a table. Structure of a single entry in the UDT_LIST array. Table set number. This field holds the least significant 16 bits of the offset to the data element required to locate the data item in a table. This is an array of indices, which combine to define the index to an item entry in a table. Length of data item(s) in octets. When the value is zero it is the end of the list. An array holding ACT_UDT_FUNC_LIM_TBL. NBR_XFR_LIST_ITEM UINT16 quantities. This space is mapped using SOURCE_ITEM_RCD into variable length records which select table or partial tables for access via the user defined tables. This table specifies what data elements are used in user tables defined for this decade. Each array entry in this table corresponds to a specific table in this decade following this table. For example, the third entry in this array corresponds to Table 83 + 3 = Table 8 This is item number in UDT_LIST_TBL (Table 82) specifying the first item in the user defined tables selected by this entry. This is item number in UDT_LIST_TBL (Table 82) specifying the last item in the user defined tables selected by this entry. Array containing up to ACT_UDT_ FUNC_LIM_TBL.NBR_UDTS (Table 81) entries. Each entry defines the source selections for a user destination user defined table. This table is defined by the items in table UDT_LIST_TBL (Table 82) selected by the first entry in table UDT_SEL_TBL (Table 83). Array containing ACT_UDT_FUNCT_LIM_TBL. UDT_0_SIZE octets holding data defined by the first entry in the list defined in UDT_SEL_TBL (Table 83). This table is defined by the items in table UDT_LIST_TBL (Table 82) selected by the first entry in table UDT_SEL_TBL (Table 83). Array containing ACT_UDT_FUNCT_LIM_TBL. UDT_1_SIZE octets holding data defined by the second entry in the list defined in UDT_SEL_TBL (Table 83). This table is defined by the items in table UDT_LIST_TBL (Table 82) selected by the first entry in table UDT_SEL_TBL (Table 83). Array containing ACT_UDT_FUNCT_LIM_TBL. UDT_2_SIZE octets holding data defined by the third entry in the list defined in UDT_SEL_TBL (Table 83). This table is defined by the items in table UDT_LIST_TBL (Table 82) selected by the first entry in table UDT_SEL_TBL (Table 83). Array containing ACT_UDT_FUNCT_LIM_TBL. UDT_3_SIZE octets holding data defined by the fourth entry in the list defined in UDT_SEL_TBL (Table 83). This table is defined by the items in table UDT_LIST_TBL (Table 82) selected by the first entry in table UDT_SEL_TBL (Table 83). Array containing ACT_UDT_FUNCT_LIM_TBL. UDT_4_SIZE octets holding data defined by the fifth entry in the list defined in UDT_SEL_TBL (Table 83). This table is defined by the items in table UDT_LIST_TBL (Table 82) selected by the first entry in table UDT_SEL_TBL (Table 83). Array containing ACT_UDT_FUNCT_LIM_TBL. UDT_5_SIZE octets holding data defined by the sixth entry in the list defined in UDT_SEL_TBL (Table 83).